Modified Soil Compositions for Removal of Acetaminophen from Wastewater

Abstract:

ACT is a widely used prescriptive drug for analgesic treatment. Due to incomplete conversion of ACT in the body, a significant portion of it is released with human excreta. Most wastewater treatment plants lack the efficiency to treat influent containing ACT residues. As a result, risk of surface and groundwater contamination has been increased. Constructed wetlands (CWs) are one of the widely used natural wastewater treatment technologies, employing soil-plant interactions in treating pollutants through a number of reactions such as plant uptake, ion adsorption and advanced Fenton reaction. In addition, the wetland plants are well-known to generate H₂O₂ in the surrounding rhizosphere for advanced oxidation process. In this study, the potential of laterite soil in initiating Fenton reactions by its abundant composition of iron (Fe) and its modified structure with activated carbon, cement and crushed shellfish (modified soil) were evaluated for ACT treatment. The induced H₂O₂ soil environment in the constructed wetland units could remove almost 80% of the ACT present initially. The results showed good occurrence of Fenton process on both natural laterite soil and modified media bed (cement: laterite soil fine: 50% laterite soil coarse: 50% activated carbon).

• Periodical: Key Engineering Materials (Volume 751)
• Pages: 677-682
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.751.677
• Online since: August 2017
• Authors: Thammarat Koottatep*, Saroj Kumar Chapagain, Vo Hoang Nhat Phong Vo, Atitaya Panuvatvanich, Chongrak Polprasert, Janjit Iamchaturapatr
• Keywords: Acetaminophen, Constructed Wetland, Fenton Reaction, Laterite Soil, Personal Care Products, Pharmaceuticals Products

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